JD was forced out due the repercussions from the over use of pain killers by the players. Oxycontin was a new drug and worked amazing. Unlike Oxycodone which gives immediate relief but makes you drowsy, Oxycontin was a slow release formula which made it very addicting. It just made you feel good.
Bowden had lost control of the team by the time of his firing. Lots of discipline issues. Some reported, many more not.